VP Lamp information

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Hi :
Dear friends,
I am searching for information about video projectors. And I want to know why two devices with same lamp have a different light output. In fact I’d like to know is there any special parameters which affects the out put although the devices have similar lamps?
I’ll be glad if anybody has technical information about video projector’s lamp help me on this case.

Thanks.
 
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.